Cake Silo Protective Coating: Water, UK
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9th January 2026
The Problem
At the Beckton Wastewater site, operated by Thames Water, critical plant equipment is subjected to exceptionally high rates of corrosion and abrasion. The facility’s Cake Silos, which process dry waste, were suffering from accelerated abrasive wear. This constant friction resulted in significant metal loss and structural thinning, forcing the engineering team to face frequent downtime and the recurring, costly necessity of replacing structural steel components.
The Solution
To break the cycle of constant steel replacement, Thames Water collaborated with Uniprep and Resimac to implement a high performance polymer protection strategy. The interior of the wastewater cake silo was prepared and coated with Resimac 501 ARXL, a ceramic enhanced, abrasion resistant coating specifically engineered for high wear environments. The product was the best solution to create a durable barrier, shielding the underlying steel from the impact of dry waste processing.
The Outcome
- A 2025 inspection confirmed the cake silo was in pristine condition with no measurable wear after one year of continuous service
- The facility eliminated the recurring expense of structural steel replacement and maintenance repairs
- By preventing abrasive and corrosion, the site avoided the frequent operational downtime previously caused by equipment failure
- Resimac 501 ARXL successfully withstood an environment where traditional steel surfaces typically fail within months
- The client now plans to implement this coating concept across other high wear areas of the plant
Client Feedback
“Beckton Wastewater site is operated by Thames Water where our plant and equipment are impacted from high rates of corrosion and abrasion. Our Cake Silos that process dry waste have an increased abrasive attack and subsequently metal loss causing hours of downtime. We invited Uniprep and Resimac to undertake an abrasion resistant polymer coating application in 2021 and after one year where we expected to replace steel in the process, there was no loss to report. This has been outstanding for Thames Water and the cost saving has been huge. We wish to thank Uniprep and Resimac for their hard work and we look forward to implementing this amazing concept throughout other areas of our plant.”— Engineering and Production Manager, Thames Water
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